This song, with many variations, was a great favourite in the Scouts in the mid-40s. I must have heard a hundred verses at various camps.

Our variation on the strawberry jam verse was:

They scraped him off the Beacons like a pound of strawberry jam (x3)
And sent him home to Mam.

As in Brecon Beacons - our local mountains.

We also had a popular pair of verses:

The RAF were flying Lancasters at 1800 feet (x3)
And they only had a teeny-weeny bomb.

The Yanks were flying Fortresses at 40,000 feet (x3)
And they had a bloody great bomb!

The popularity owed more to the opportunity to sing a swear word in public than any transatlantic rivalry, although I'm sure the originator of the couplet had an RAF background.

Phil